Chain-wheel temper



(No Model.) 2 Sheets-Sheet l. W. C. WELLS.

CHAIN WHEEL TEMPER. 110.451,14. Patented Apr. 28, 1891.

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Will et C .We/1L s 5 11;/ atto m4 @13M (No Model.) 2 Sheets-Sheet 2.

W. C. WELLS.

CHAIN WHEEL TEMPLE. 110.451.146 PatentedApr. 28,1891.

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UNrTED STATES PATENT OFFICE.

VILLET C. WELLS, OF FOSTORI, OHIO.

CHAIN-WHEEL TEM PER.`

SPECIFICATION forming part of Letters Patent No. 451,146, dated April28, 189] Application filed September 15 1890. Serial No. 365,061. Nomodel.)

To all whom t may oon/cern.-

Be it known that I, WILLET C. WELLS, of Fostoria, in the county ofSeneca and State of Ohio, have invented certain new and usefulImprovementsin Chain-Wheel Tempers; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, referencebeing had to the accompanyingdrawings,and to the figures of reference marked thereon, which form part of thisspecification.

This invention relates to a chain wheel temper-screw adapted to be usedmore particularly upon machines for sinking gas or oil wells.

Theobject of the invention is to produce a device of the abovedescription which shall be of such construction that all slack rope orchain will be taken up, and which will at the same time admit ofthe ropeor chain being readily fed out as rapidly as may be desired.

A further object is to produce a chainwheel temper-screw which shall besimple of construction, eiiicient and durable in use, and comparativelyinexpensive of production.

lVith these objects in View the invention consists in the novelconstruction and combination of parts of a chain-wheel temper-screw, aswill be hereinafter fully described and claimed.

In the accompanying drawings, forming part of this specification, and inwhich likev numerals of reference indicate corresponding parts, I haveillustrated one form of device embodying` the essential features of myinvention, although the same may be carried into effect in other waysWithout 'in the least departing from the spirit thereof; and in thesedrawings- Figure 1 is a side elevation of a well-bor- .ing machine,showing the diiferent parts of the same and my tempersoreT secured inplace thereon. Fig. 2 is a similar view on an enlarged scale, showingmore particularly the temper-screw. Fig. 3 is a sectional View takenReferring to the drawings, 1 designates a base, `upon which is journaledin suitable bearngs'a drum 2, which is actuated by means of intermediategears from a pulley 3. As` this mechanism forms :no part of the inven`tion, a detailed description ot` itis not thought necessary. Upon thesaid base are mounted standards 4, connected by means of crosspieces 5,upon which is mounted a dovetailed track 6, on which the chainwheeltemperscrew moves. This latter consists of a casting or frame S,carrying a stud 9, on which is mounted a Wheel l0, comprisi ng aWorm-Wheel proper 1l and a chain-Wheel 12, formed, preferably, integraltherewith. The Wheel is formed with a series of depressions or recesses13, in which the flat sides of the links ofthe chain rest, while thealternate links engage a peripheral recess 14. The outer side of thewheel is formed with a flaring portion 15, Which serves asa guide tohold the chain 16 in place When in operation. Immediately below theWorm-Wheel is journaled a worm 17, which is actuated by means of a hand-Wheel 18 to turn the said wheel in either direction. The lower portionVof the casting S isformed With a perforated lug 19, to which connectsthe upper end of a pitman 20, the lower end of which connects with acrank 21 upon the drum-shaft. To the pitman is secured a cylinder or box22, adapted to contain. the chain, the length of which is equivalent tothe length of one of the drill-stocks. To the upper end of the saidchain is connected a rope 23, which passes over a pulley 24 and connectswith the drill-stock 25. The other parts of the mechanismillustratedsuch, for example, as the escape-pipe and casing-are notdescribed, as it is not thought necessary. v

Having thus fully described my device, I will explain the manner of itsoperation. Vhen the machine is in operation and it is desired to lowerthe drill, the operator simply turns the hand-wheel 18 at each stroke ofthe crank 21, thereby feeding out as much chain as maybe desired untilthelength of the chain in the boX 22 is exhaust-ed. Another section ofdrill-stock is then attached, the chain being uncoiled from thechain-Wheel, the surplus chain returning to the box and recoiled IOOupon the chain-wheel, from which it is fed back as the drilling proceedsin the manner described. A

It will bel readily seen from the foregoing description that althoughthis device is exceedingly simple of construction it may be operatedwith but a small amount of labor.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. In a chain-wheel temper-screw, the combination of a reciprocatoryframe or casing, combined Worm and chain wheel carried thereby, and aworin adapted to engage the said wheel.

2. In a chain-Wheel temper-screw, the combinationof a reciprocatoryframe or casing, a combined'worin and chain Wheel journaled thereto, anda worm adapted to operate the said Wheel."

3. In a chain-Wheel temper-screw, the combination of a reciprocatoryframe or casing carrying a stud or projection, a combined Worm and chainWheel journaled on said projection, and a worm adapted to operate thesaid wheel.

4. In a chain-wheel temper-screw, the cornbination of a reciprocatoryframe or casing, a combined worm and chain Wheel journaled thereon, oneend of which is formed with teeth and the opposite end With a flaringportion, and a worm adapted to engage the said teeth.

5. In a chain-Wheel temper-screw, the coinbination of a reciprocatoryframe or casing Iand a combined worm and chain wheel jour-

